987434 has 16 divisors (see below), whose sum is σ = 1705536. Its totient is φ = 420000.

The previous prime is 987433. The next prime is 987457. The reversal of 987434 is 434789.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 987394 and 987403.

It is not an unprimeable number, because it can be changed into a prime (987433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3374 + ... + 3654.

It is an arithmetic number, because the mean of its divisors is an integer number (106596).

2⁹⁸⁷⁴³⁴ is an apocalyptic number.

987434 is a deficient number, since it is larger than the sum of its proper divisors (718102).

987434 is a wasteful number, since it uses less digits than its factorization.

987434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its digits is 24192, while the sum is 35.

The square root of 987434 is about 993.6971369587. The cubic root of 987434 is about 99.5793664886.

The spelling of 987434 in words is "nine hundred eighty-seven thousand, four hundred thirty-four".